Which is NOT a form of kabuki?

The form of kabuki that is not recognized is the sotoha. In the context of kabuki theater, the recognized forms include deha, chuha, and iriha. These terms refer to different styles or schools within kabuki, each with distinct characteristics and performance techniques.

Deha represents one of the traditional forms, focusing on specific genres or storylines. Chuha serves as a progression between the other forms, incorporating elements from various kabuki traditions while maintaining the core essence of the art. Iriha, although less commonly mentioned, pertains to a certain classification that adds to the richness of kabuki.

Sotoha, however, is not an established term or classification within kabuki, making it the correct choice here. Understanding these distinctions enhances one's grasp of kabuki as a nuanced form of traditional Japanese theater with various styles that convey complex narratives and aesthetics.